DIN 18541-1
DIN 18541-1 Termoplastic water stops for sealing joints in in-situ concrete - Part 1: Terms and definitions, shapes, dimensions, marking
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 09/01/2006
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 09/01/2006